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Has the Outcome for Patients Who Undergo Resection of Primary Retroperitoneal Sarcoma Changed Over Time? A Study of Time Trends During the Past 15 years.

Abstract：

BACKGROUND:This study aimed to investigate changes in treatment strategy and outcome for patients with primary retroperitoneal sarcoma (RPS) undergoing resection at referral centers during a recent period. METHODS:The study enrolled consecutive adult patients with primary non-metastatic RPS who underwent resection with curative intent between 2002 and 2017 at 10 referral centers. The patients were grouped into three periods according to date of surgery: t1 (2002-2006), t2 (2007-2011), and t3 (2012-2017). Five-year overall survival (OS), disease-specific survival (DSS), and crude cumulative incidence (CCI) of local recurrence (LR) and distant metastasis (DM) were calculated. Multivariable analyses for OS and DSS were performed. RESULTS:The study included 1942 patients. The median follow-up period after resection varied from 130 months (interquartile range [IQR], 124-141 months) in t1 to 37 months (IQR, 35-39 months) in t3. The 5-year OS was 61.2% (95% confidence interval [CI], 56.4-66.3%) in t1, 67.0% (95 CI, 63.2-71.0%) in t2, and 71.9% (95% CI, 67.7-76.1%) in t3. The rate of macroscopically incomplete resection (R2) was 7.1% in t1 versus 4.7% in t3 (p = 0.066). The median number of resected organs increased over time (p < 0.001). In the multivariable analysis resection during t3 was associated with better OS and DSS. The 90-day postoperative mortality improved over time (4.3% in t1 to 2.3% in t3; p = 0.031). The 5-year CCI of LR and DM did not change significantly over time. CONCLUSIONS:The long-term survival of patients who underwent resection for primary RPS has increased during the past 15 years. This increased survival is attributable to better patient selection for resection, quality of surgery, and perioperative patient management.

journal_name

Ann Surg Oncol

journal_title

Annals of surgical oncology

authors

Callegaro D,Raut CP,Ng D,Strauss DC,Honoré C,Stoeckle E,Bonvalot S,Haas RL,Vassos N,Conti L,Gladdy RA,Fairweather M,van Houdt W,Schrage Y,van Coevorden F,Rutkowski P,Miceli R,Gronchi A,Swallow CJ

doi

10.1245/s10434-020-09065-6

subject

Has Abstract

pub_date

2020-10-18 00:00:00

eissn

1068-9265

issn

1534-4681

pii

10.1245/s10434-020-09065-6

pub_type

杂志文章

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Has the Outcome for Patients Who Undergo Resection of Primary Retroperitoneal Sarcoma Changed Over Time? A Study of Time Trends During the Past 15 years.